Relay.



P. M. RAINEY.

RELAY.

APPLICATION FILED MAR. 4. 1915.

l 1 84,0 1 7 Patented May 23, 1916.

3 g g f g g g 2 W/knessesx /n vemor: Pau/ M fPci/hey UNITED STATES PATENT OFFICE.

PAUL M. RAINEY, OF GLEN RIDGE, NEW JERSEY, ASSIGNOR, BY MESNE ASSIGNMENTS, TO WESTERN ELECTRIC COMPANY, INCORPORATED. A CORPORATION OF NEW YORK.

RELAY.

Application filed March 4, 1915.

To all whom it may concern Be it known that I, PAUL M. RAINEY, a citizen of the United States, residing at Glen Ridge, in the county of Essex and State of New Jersey, have invented certain new and useful Improvements in Relays, of which the following is a full, clear, concise, and exact description.

This invention relates to electromagnetically operated devices, and is particularly useful in connection with relays employed in telegraph circuits.

The general object of the invention is to provide a new and improved magnet and armature structure in which the air gaps between the magnet pole-faces and the armature can be readily adjusted for the purpose of regulating the operation of the relay.

The invention will be readily understood from the following description, taken in connection with the accompanying drawing, in which one embodiment of it is set forth.

which may be of wood or other suitable material. This base may have a chamber 6 in which may be located certain parts here inafter described and the wiring leading from terminals such as 8 to the windings of the electromagnets by which the operation of the relay is controlled. For the sake of clearness, this wiring is omitted inasmuch as it is immaterial as far as the present invention is concerned how the windings of the magnet coils and the circuits therefor are arranged, these being variable according to the requirements of the circuits in which a relay embodying the invention is to be employed.

The principal parts of the relay, except Specification of Letters Patent.

Patented May 23, 1916.

Serial No. 12,011.

the adjusting means hereinafter described, are mounted on a base-plate 9 secured to the base 5 at the top of the cavity 6 in any suitable manner, as by screws 10. The re lay illustrated is of the polarized type and contains a polarizing electromagnet havmg a coil 12 and two actuating electromagnets having coils 13, 13. The polarizing magnet coil 12 is mounted on a pole-piece 16 secured to the base-plate 9, and the actuating magnet coils 13, 13 are mounted on a common base or pole-piece 17 which is pivotally supported on a screw 18 passing freely through it and into the pole-piece 16. lVithin each actuating coil 13 is a core 20, the upper end of which forms a pole-face with which the armature (hereinafter described) cooperates. The cores 20 have threaded portions 21 near their lower ends which screw into threaded holes in the pivoted polepiece 17: and said cores are provided with slotted screw-heads and locknuts 23 to permit their adjustment. Se cured to the bottom of the pivoted polepiece 17 by screws 25 or in any other suitable manner, is a plate 26 having an extended arm 27. The end of the arm 27 is located in a slot formed in a member 29 carried by or forming part of a vertically adjustable screw 30 mounted within a cylindrical casing 31 having a flange 32 which engages the top of the base 5 and a threaded portion which engages the baseplate 9, as clearly shown in Fig. 2. The vertical adjustment of the screw 30 and the slotted member 29 is obtained through the medium of an internally and externally threaded screw 34: which receives the screw 30 and which screws into the cylindrical casing 31. The threads on the inside and outside of the screw 34 are of slightly different pitch, thereby requiring a considerable angular movement of the screw 31 for a small longitudinal movement of the screw 30 and the member 29. The end of the arm 27 carries a screw 36, the end of which abuts against the bottom of the slot in the member 29, thus permitting initial approximate adjustment of the position of the pivoted pole-piece 17. A leaf-spring 38, secured to the bottom of the plate 26 by screws 39 and engaging the bottom of the base-plate 9, tends to turn the pivoted polepiece 17 in a counter-clockwise direction,

as viewed in Fig. 2, thereby holding the end ofwthe screw 36 in engagement with the bottom of the slot in the member 29. The position of the pivoted pole-piece 17 and the actuating magnets carried thereby can therefore be delicately adjusted by turning the screw 34.

Secured to the pole-piece 16 and passing up through the polarized magnet coil 12 is a rod 43 which serves both as the core for the coil 12 and also as a support for the upper part of the relay structure. Secured :on the rod 43 is a plate 44, of the form best shown in Fig. 1, which serves both as a pole-piece for the polarizing magnet and as a support for the relay armature. As shown, pole-piece 44 surrounds the upper pole of each of the actuating magnets. The relay armature 45 is pivotally supported in cooperative relation to the upper ends of the cores 20 of :the actuating magnets by a pivoted shaft 46 formed at its ends into knife edges which engage grooves in the top of the pole-piece 44, as shown in Figs. 1 and '3. The armature 45 carries an upwardly extending contact member 48, preferably of aluminum or some other light material, which is arranged to vibrate between contacts 49 and 50. The contacts 49 and 50 may take the form of-screws having knurled heads 51 and 52, which screws are supported in :a structure mounted "on the top of the rod 43. This structure may comprise a split block :53 on the rod 43, blocks 54 and 55 and a clamping bolt 5.6:pa'ssing through split portions of the blocks 54 and 55., and

screws 57 and 58 passing through the split ends of blocks 54 and 55 serve to clamp the contact screws49 and 50 in any position at which they may beset. Electrical connection with the blocks 54 and 55 and therefore ing handling and shipment of the relay, a

coiled spring 65 is employed. This .spring is secured at one'end to the top of the armature pivot '46 and at the other end to a bracket 66 which is secured to the edge of the pole-piece 44 by a clamping member 67 andscrews 68 and 69 :as bestshown in Fig.

3. By this arrangement, the free movement of :the armature is not interfered with, :and yet the latter is held 111 place and the knife edge contact between the pivot 46 and the pole-piece 44 need not be relied upon to conduct current to the movable contact member 48.

Theoperating parts of the relay may be protected by a removable cylindrical casing 70 of brass or other suitable material which may have a glass top 71 through which the manner in which the relay contacts cooperate may be observed. In the relay described, after the contacts 49 and 50 and the cores 20 of the actuating mag-nets have been suitably adjusted, it is usually only necessary to manipulate the screw 34 for regulation of the actuating relay under the varying condition of use.

While I am showing my invention as embodied in a relay which is polarized by an electromagnet, it will be understood that it is equally adaptable to a relay polarized by a permanent magnet or in fact may be used in connection with an unpolarized relay if desired.

What is claimed is:

1. In a relay, a pivotally supported armature, itwo actuating magnets, one coiipera'ting with said armature on each side of its pivotal point, a pivoted support for said magnets, and means for adjusting the position of said pivoted support and thereby the position of said magnets with reference to said armature.

2. Ina relay, a pivotally supported armature, two actuating magnet coils coiiperating with said armature, cores within said coils, the pole faces of said cores being adjacent said armature on opposite sides of its pivotal point, a pivoted support for said cores, and means for adjusting the position :of said pivoted support and thereby the position of said pole faces with reference to said armature.

3. In arelay, a pivotally supported armatu-re, .two actuating magnet coils coiiperating with said armature, cores within said coils, a pivoted support for said coils and cores and means for adjusting the position of said pivoted support and thereby the position of said cores and coils with reference to said armature.

4. In:a:relay,a pivotally supportedarma- 'ture, a pair of actuating magnet coils =cooperating with said armature, a pivoted support upon which said actuating coils are mounted, cores within said actuating coils independently and adjustably mounted on said pivoted support, and means :for adjust-ing the position of said pivoted supportand thereby the position .of said cores and coils with reference :to said armature.

5. In a relay, a'polarizing magnet. a pair of actuating 'e'lectromagnets, a pole-piece extending from one pole of said polarizing magnet and surrounding one pole of e'ach of said actuating magnets, and an armature pivotally supported on said pole-piece and adapted for movement under the influence of said magnets.

6. In a relay, a polarizing magnet, a pair of actuating electromagnets, a pole-piece extending from one pole of sa1d polarizing magnet and surrounding one pole of each of said actuating magnets, an armature pivotally mounted on said pole-piece and adapted for movement under the influence of said 10 magnets, and a flexible connection between said pole-piece and said armature.

In witness whereof, I hereunto subscribe my name this 2nd day of March A. D., 1915.

PAUL M. RAINEY. Witnesses:

E. EDLER, K. L. STAKL.

Copies of thin potent my be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0." 

